Henry guy carleton



(No Model.)

Patented Aug. 2, I898. HENRY GUY BARLETDN.

ELECTRIC LUCK, (Application filed my 24, 1898.)

4 Sheets$heet I.

INVENTOR a 6 ATTORNEYZ.

No. 608,-32I. Patented Aug. 2, I898. HENRY GUY GARLETON.

ELECTRIC LOOK.

. (Application ma m 24, 1898.)

(N0 M 4 SheetsSheet 2.

ATTOR N EYS THE uogms PETERS cu. FHOTO-LITHQ, WASHINGTON. uxc.

No. 608,32I. Patented Aug. 2, I898. HENRY GUY CARLETON.

ELEGTFHC LOCK.

(Application flied May 24, 1898.)

(No Model.)

4 SheelSheet 3.

WITNESSES:

INVENTOR fimauszs Patented Aug. '2, I898. HENRY GUY CABLETON.

ELECTRIC LOCK.

(Application filed May 24, 1898.)

. n Model.)

4 Sheets-Sheet 4 v INVENTOR 7 WITNESSES ATTORNEYS PATENT HENRY GUY CARLETON, OF NEYV YORK, N. Y.

ELECTRIC LOCK.

SPECIFICATION forming part of Letters Patent No. 608,321, dated August 2, 1898.

Application filed May 24, 1898. Serial No. 681,586. (No model.) 7

To all whom it may concern.-

Be it known that I, HENRY GUY CARLETON, a citizen of the United States, residing at New York, county of New York, and State of New York, have invented certain new and useful Improvements in Electric Locks, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

This invention has for its object to produce an electric lock which has but few parts, is inexpensive to construct, is simple in its operation and therefore not liable to get out of order, is'durable, is of general application, can be operated by a minimum of current and is therefore inexpensive to maintain, and is absolutely under the control of the person manipulating the circuit-closer which establishes the circuit through the lock.

A further object of the invention is to provide a system of signals or alarms for use in connection with electric locks, whereby both' the person at the circuit-closer and the person who is seeking to operate the lock may be simultaneously notified that the lock is in condition to be operated and whereby when the'lock is operated and the door opened the person at the circuit-closer is immediately notified of the fact, thus rendering such locks particularly well adapted for use in apart-' ment-houses and in other places in which the lock is located at a considerable distance from the controlling circuit-closer.

With these objects in view the invention consists in certain constructions, parts, improvements, and combination, which will be first described in the following specification and the novel features then pointed out in the claims hereto appended.

In the accompanying drawings, which are hereby constituted a part of this specification and in which like reference characters indicate the same parts, several forms of apparatus are illustrated, which differ somewhat in detail, but all of which embody the invention.

In the drawings, Figure 1 is a central vertical section through the lock and keeper,

the device being shown as applied to a suitable door and jamb. Fig. 2 is a sectional detail, the section being taken on the horizontal plane indicated by the lines2 2. Fig. 3

tion illustrated in Fig. 6.

is a sectional detail showing the bolt disengaged from its keeper. Fig. 4 is a diagrammatic viewof the circuits employed. Figs. '5, 6,,and7 illustrate modified forms of the construction. a I

A indicates the casing containing the looking mechanism. This casing is shown as mounted in the woodwork of an ordinary door, (indicated by 13,) the casing being inserted in a mortise in the door or applied thereto in any usual manner.

D indicates the'jamb of the door, in which the keeper'3'7, which is of usual construction, is mounted;

Mounted in the casing A is a frame 0.

' This frame supports and carries amagnet in the forms of construction shown in Figs. 1, 5, and 7 but it may also carry the armature of the magnet, as is shown in the construc- V This frame may be'mounted in the casing in any suitable way which will permit it to have a sliding or reciprocating movement therein. In the constructions shown in Figs. 1, 6, and 7 it is mounted in suitable guides 14.

Referring to the construction shown in Fig. 1, the frame 0 carries a cross-bar G, on which is mounted in any suitable way an electromagnet the coils of which are marked 10 and the pole-pieces 11. In the construction referred to the pole-pieces of the magnet are secured to the cross-bar by suitable screws, but the magnet may be mounted in any other suitable, and convenient manner. Between the guides 14, before referred to, and suitable bosses or projections 13, which may be on the frame 0 or on the cross-bar G, or, as shown, on both, are springs 13, which springs preferably surround the parts of the frame 0, to which they are adjacent, and serve to keep the frame in its forward position, as shown in Fig. 1.

In engagement with the inner'crosssbar of the frame 0 is a tumbler-cam 16, mounted on the spindle 15 of an ordinary door-knob. (Not shown.) It is obvious that byturning the knob and with it the tumbler-cam 16, referred to, the frame 0 will be drawn back, carrying with it the magnet-coils 10. When,

however, the knob is released, the frame will be returned to its normal position by means of the springs 12.

The latch or bolt 17 of the lock is mounted so as to slide between suitable guides 18 and 1S). Surrounding the stem of the latch or bolt is a spring 20, which bears at one of its ends against a collar 21. on the latch and at its other end against the guides 18 1.). The collar 21 may, however, be omitted and the spring bear directly against the shoulder of the latch, as shown in Fig. 7. Loosely surrounding the latch and lying forward of the collar 21 thereon is an armature 22. In this form of the construction the armature has its ends in close proximity to and preferably, though not necessarily, in contact with the pole-pieces ll of the magnet before referred to. liy so arranging the armatureviz., in contact with the pole-pieces of the magnet economy of battery-power is gained; but so long as the armature is arranged sufficiently near the magnet to move with the magnet when it moves the result desired may be accomplished.

Mounted in suitable sockets 23 in the door 13 are spring-contacts 21-. These spring-contacts are engaged by contacts 26, mounted in a plate 95 in the jamb of the door.

The circuits employed are as follows: \Vi res 27 27 27", together with the metallic lockframe, form the circuit between the springcontacts 24-, above described, and the coils of the magnet, the wire 27 being carried from one of the contacts through suitable apertures in the parts of the look, as shown in Fig. 1, directly to one of the magnet-coils, the wire 27" beinglcd from the other magnetcoil to the cross-bar G, which connects with the metallic lock-frame, and the wire 27, leading from the lock-frame to the contact. The circuit may, however, be formed in any other convenient manner. The wire 28 forms the connection between the two coils 10. Leading from the contacts 26 are wires 28 and 29. The wire 25) is run to a battery 31 or other suitable source of electrical energy, and from this battery is led a wire 32, this wire being connected to the binding-post of a suitable alarm device 33,which may be an ordidinary buzzer. Leading from the otherbinding-post of the alarm 32 is a wire 33", which is connected to one of the contacts of an ordinary circuit-closer 30. The wire 28 runs from the other contact of the circuit-closer to the contact 26. Leading from the contacts 23 are two wires 35,which include asuitable alarm device 3 By this arrangement of circuits it will be noticed that the alarm 36 is connected in multiple with the magnet 10. A suitable resistance Ill is connected to the two wires 32 33 of that part of the circuit which includes the alarm or buzzer Il-l, before referred to, this resistance being substantially equal to the resistance of the magnet. lly this arrangement the alarm 353 is also connected in multiple with the resistance IJ-t and the circuit is properly balanced.

The operation of the device so far described been given that some one desires to operate the lock and open the door, the person having charge thereof operates the circuit-closer 30 to close the circuit. lly this operation the circuit is made through the coils 10 of the magnet, and the magnet is thereby caused to attract and hold its armature 22. At the same time both the alarms 33 and 36 will sound, the alarm 36 notifying the person who is desirous of operating the lock that the same is in condition to be Operated and the alarm 33 notifying the person closing the circuit that a circuit has been established through the lock. The person who is desirous of operating the look now turns the knob, thereby operating the tumbler-cam 16 to draw back the frame C and the magnet mounted therein. Since, however, this magnet has attracted its armature, the armature will also move back, carrying the bolt 17 of the lock with it. As the bolt is withdrawn from its keeper, the door can now be opened. As soon, however, as the door is opened the circuit is broken bya separation of the contacts 24: 26. This breaking of the circuit causes both the alarms to cease sounding, and the person operating the cir- Quit-closer is thereby in formed that the lock has been operated and the door opened.

It will be understood that by using the resistance 3t, and thereby placing both alarms in multiple arc, the magnet will not become deenergized by reason of the make and break in the alarms.

The keeper 37, which in this form of the device is permanentlysecured to the jamb of the door, has one of its edges beveled off in the usual way, as at 39, so as to form a camsurface for forcing back the latch 17 in case the sliding frame is released by turning the knob before the door is closed.

By the arrangement of the circuits and the location of the alarms heretofore referred to the lock is particularly adapted for use in apartment-honses and in other places where the controlling-switch or ei rcuit-closer for the lock is to be located at a considerable distance from the lock itself, since by a single operation of the circuit closer both the person at the door and a person at the closer are noti tied that the door is in condition to be opened, and, furthermore, as soon as the door has opened the person at the circuit-closer is notitied of that fact. In case of a failure of the alarm which is near the circuit-closer to sound the person operating the circuit-closer will be informed of the factthat something is wrong with the circuit and that the lock cannot therefore be operated.

It is obvious that many modifications of the construction maybe made without departing from the invention, some forms of which are shown in the accompanying drawings.

In the construction illustrated in Fig. 5 it will be noted that the guides 14 are omitted and the magnetcarrying frame 0 slides on suitable guidingrods ll, extending longituis as follows: A suitable notification having dinally of the loek-casing. In this modifica- 608,321 Y I a t'ion the pole-pieces 11 of the magnet are increased in length and are-secured to the crossbar G in any suitable manner-as, for instance, by screws. The coils of the magnet are stationary, being held in a suitable frame or bracket I, and the pole-pieces are reciprocated longitudinally through the stationary magnet-coils. The armature 22 in this form of the construction is preferably, but not necessarily, provided with perforations and slides on the guiding-rods 11, before referred to. It also is or may be held in position between the shoulder on the latch and the collar 21. The operation of the construction illustrated in this modification will be obvious from the description which has been heretofore given. When the current is passing through the magnet-coils, the armature is attracted by the polepieces. When thereafter the tumbler-cam 1G is operated, the frame 0 will be drawn back, as in the first form of the construction described, and will carry the pole-pieces, the armature, and the bolt 17 with it. WVhen, however, the current is not passing through the magnetcoils, the frame 0 and the pole-pieces can reciprocate under the influence of the tumblercam without producing any movement of the armature and bolt.

In the modification shown in Fig. 6 the cross bar Gr of the frame 0 preferably forms the armature of the magnet, though of course the armature may be a separate piece, which is suitably supported on and connected to the cross-bar. The magnet itself is carried by a suitable frame K, which is supported to slide in the lock-casin g in any convenient manner. The frame K is shown as angular in form, and

the bolt 17 passes through a suitable aperture formed therein. In this form of construction when the current is passed through the coils of the magnet the magnet and armature will move together under the influence of the tumbler-cam, carrying with them the bolt 17. When, however, no current is'passing through the magnetcoils, the frame O, carrying the armature,will reciprocate Without moving the magnet or the bolt 17; v

In the modification illustrated in Fig. 7 a single coil is used, and the stem of the latch or bolt 17 is made long enough to extend down into the magnet-coil, forming a core therefor. In this construction the coil and the stem of the latch or bolt form practically a solenoid, although the stem of the bolt has no movement in the coil. Whena current is passed through the magnet-coil 10, the stem of the latch will be attracted by-the coil and firmly held thereon. WVhen now the tumbler-cam 16 is operated, the frame 0, the magnet-coil, and the bolt will be drawn back against the tension of the spring 20. When, however, no

current is passing through the magnet, the stem of the bolt remains stationary, being held by the spring 20, and the magnet-coil and the frame C will reciprocate without operating the bolt.

It will be seen that each form of the apparatus is characterized by a movable magnet, which when it is energized causes the bolt of the lock to move wit-h it and which when it is deenergized has no effect upon the bolt.

It is to be understood that the term magnet as used herein comprehends all forms of devices which constitute sources of magnetic attraction, and by the term movable is meant that'the magnet is movable with respect to the other parts of the lock, it being of course immaterial whether the entire magnet moves, as in the constructions illustrated in Figs. 1, 6, and 7, or whether the pole-pieces alone move, as is illustrated in Fig. 6. ..It is also of course entirely feasible to construct the lock so that the keeper will be the part operated by the magnet instead of the latch; but this construction being obvious it is not illustrated. While, also, the circuits are so arranged as to include make-and-break alarms arranged in multiple with a suitable resistance to balance the circuit, it would be entirely possible to use suit-able single-stroke alarms connected in series with the magnet.

It is also to be understood that many modifications other than those illustrated and described may be resorted to without departing from the spirit and scope of the invention. The invention is not, therefore, to be limited to the constructions shown and described, but it is to be. regarded as generic in its nature.

What I claim -isi l. In an electricallycontrolled lock, the combination with a movable magnet, of one of the engaging parts of the lock, such as the latch or keeper, the attractive force of the magnet being made effective upon the said engaging part whereby a movement of the magnet willcause a corresponding movement of the latch or keeper, substantially as described.

2. In an electrically controlled lock, the combination with a movable magnet, and its armature, of one of the engaging pa'rts'of the lock such as the latch or keeper, the parts being so constructed and arranged that when the magnet attracts the armature the magnet armature andthe engaging part will move together, substantially as described.

3. In an electrically-controlled lock, the

' combination with a movable magnet, of engaging parts such as a latch and keeper, and an armature for moving one of the parts, the parts being so constructed and arranged that when the magnet attracts the armature the said-armature and the part of the lock which it moves will move with the magnet and at other times the magnet may move without disturbing the relation of the parts, substantially as described.

4. In an electrically-controlled lock, the combination with oneof the engagingparts of the lock, such as the latch and'keeper, of a magnet and its armature, one of these devices being movable with respectto the other when the magnet is not attracting its armature and the two being movable together when the magnet is attracting its armature, connections between one of these devices and the engaging part of the lock, whereby when the magnet and armature move together the parts of the lock may be released from 011- gagement and when they do not move together the parts of the lock will remain in engagement, substantially as described.

5. In an electrieally-controlled lock, the combination with a movable magnet, of one of the engaging parts such as the latch or keeper, an armature embraein g one of the engaging parts, said armature lying in close proximity to the poles of the magnet, a circuit for energizing the magnet, and means for moving the magnet, the parts being so arranged that when the magnet is attracting its armature a movement of the magnet will release the engaging parts, and when the mag net is not attracting its armature the engagement between such parts will be undisturbed, substantially as described.

C. In an electrically-controlled lock, the combination with one of the engaging parts, such as the latch or keeper, of a magnet and its armature, a moving frame in which one of these parts is mounted, connections between the said engaging part and the part mounted on the moving frame, and means for operating the moving frame, substantially as described.

7. In an electrically-controlled lock, the combination with one of the engaging parts, such as the latch or keeper, of a magnet and its armature, a moving frame for operating one of these devices, connections between the other device and one of the engaging parts, and means for operating the moving frame, substantially as described.

8. In an electrieally-controlled lock, the combination with one of the engaging parts, such as the latch or keeper, of a magnet and its armature, connections between the armature and one of the engaging parts, a sliding framein which the magnet is mounted, means for operating the sliding frame in one direction, and automatic means for returning the frame, substantially as described.

9. In an electric lock, the combination with a sliding spring-controlled latch, of an armature mounted on the latch, a sliding frame, a magnet mounted on the sliding frame, a tumbler-cam for operating the frame in one direction, and a spring for returning the frame, substantially as described.

10. In an electric lock, the combination with a moving frame, and means for operating it, of an electromagnet mounted on the frame, a latch having its stein located between the poles of the magnet and sliding in suitable guides, a spring for controlling the bolt, an armature embracing the bolt and having its ends in proximity to the poles of the magnet, substantially as described.

11. In an electric lock, the combination with a door, of a movable magnet, engaging parts, such as the latch and keeper, the attractive force of the magnet being made effective upon one of said engaging parts, and means for moving the magnet whereby when the magnet is exercising its attractive force the said part will move with the magnet and at other times the magnet may move without disturbing the relation of the parts, a circuit for energizing the magnet, a circuit-closer for establishing a current through the magnet, and suitable means for breaking the circuit when the lock is operated, substantially as described.

19. In an electrically-controlled lock, the combination with a door, of a movable magnet, engaging parts, such as a latch and keeper, the attractive force of the magnet being made effective upon one of the engaging parts, and means for moving the magnet whereby when the magnet is exercising its attractive force the said part will move with the magnet and at other times the magnet may move without disturbing the relation of the parts, a circuit for energizing the magnet, and means operated by the opening of the door whereby the circuit is broken when the door is opened, substantially as described.

13. In an electrically-controlled lock, the combination with a door, of a movable magnet, engaging parts, such as a latch and keeper, the attractive force of the magnet being made effective upon one of the engaging parts, and means for moving the magnet whereby when the magnet is exercising its attractive force the said part will move with the magnet and at other times the magnet may move without disturbing the relation of the parts, a circuit for energizing the magnet, a circuit-closer, means whereby the circuit may be broken, and an alarm in the said circuit, substantially as described.

14:. In an electrically-eontrolled lock the combination with a door, of a movable magnet, engaging parts, such as the latch and keeper, the attractive force of the magnet being made effective upon one of the engaging parts, and means for moving the magnet whereby when the magnet is exercising its attractive force the part will move with it and at other times the magnet may move without disturbing the relation of: the parts, a circuit for energizing the magnet, a circuitcloser, means operated by the opening of the door whereby the circuit is broken, and an alarm in said circuit, substantially as described.

15. In an electrically-eontrolled lock, the combination with a movable magnet, of one of the engaging parts, such as the latch or keeper, the attractive force of the magnet be ing made effective upon the said engaging part, and means for moving the magnet whereby when the magnet is exercising its attractive force the said part will move with the magnet and at other times the magnet may move without disturbing the relation of the parts, a circuit for energizing the magnet, a circuit-breaking device located in proximity to the look, a circuit-closing device located at a distance therefrom, an alarm located in proximity to the lock, and a second alarm located near the circuit-closin g device, both alarms being operated from the magnetcircuit, substantially as described.

16. In an electrically-controlled lock, the combination with one of the engaging parts such as the latch or keeper, of stationary magnet-coils, pole-pieces reciprocating through said coils, an armature connected with the engaging part, means for establishing a circuit in the magnet, and means for reciprocating the pole-pieces, substantially as described.

17. In an electrically-controlled lock, the combination With one of the engaging parts of the lock, such as the latch or keeper, of stationary magnet-coils, an armature connected to the engaging part, pole-pieces reciprocating through the stationary magnetcoils, a frame with Which the pole-pieces are connected, and means for reciprocating the frame, substantially as described.

18. In an electrically-controlled lock, the combination with one of the engaging parts, such as the latch or keeper, of an armature connected with said part, stationary magnetcoils, a frame, pole-pieces connected to said frame and reciprocating through the magnetcoils, a tumbler-cam for reciprocating said frame in one direction, and means for returning it, substantially as described.

19. The combination with a lock-casing, of one of the engaging parts of the lock, such as the latch or keeper, of guide-rods extending through the casing, an armature connected to said engaging. part and mounted on said guide -rods, a frame also mounted on said guide-rods,pole-pieces connected to the frame, a tumbler-cam for operating the frame in one direction, and means for returning it, substantially as described.

20. In an electrically-controlled lock, the combination with the controlling devices for the lock, the same including a suitable magnet, of an alarm located near the lock and connected in multiple with the magnet there of, a circuit-closing device located at a distance from the lock, an alarm located near the circuit-closing device, and a resistance connected in multiple with the alarm, sub stantially as described.

21. The combination with a door,of an electrically-controlled lock, controlling devices for said lock including a suitable magnet, a circuit for the magnet of the lock, an alarm located near the lock and connected in multiple with the magnet, a circuit-closing device located at a distance from the lock, an alarm located near the circuit-closer, a resistance connected in multiple with the alarm,

and means for breaking the circuit, substantially as described.

22. The combination With a door,of an electrically-controlled lock, controlling devices for said lock including a suitable magnet, a circuit for the magnet of the lock, analarm located near the lock and connected in mul tiple-With the magnet, a circuit-closing device located at a distance from the lock, an

alarm located near the circuit-closer, a resistance connectedin multiple with the alarm, and circuit-breakingdevices operated by the movement of the door, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

HENRY GUY CARLETON.

Witnesses: 4

JAMES Q. RICE, A. L. KENT. 

